| [Fire Fighting] Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. | |
| [Fire Potential] Nonflammable. | |
| [Ingestion] If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately. | |
| [Inhalation] Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. | |
| [Skin] Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | |
| [Eyes] Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. | |
| [Storage] Store in a cool, dry place. Keep container closed when not in use. | |
| [Handling] Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. | |
| [Inhalation] Causes respiratory tract irritation. Irritation may lead to chemical pneumonitis and pulmonary edema. | |
| [Skin] Causes skin irritation. May be absorbed through the skin in harmful amounts. Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath, | |
| [Eyes] Causes severe eye irritation. | |
| [Ingestion] May be fatal if swallowed. Poison by ingestion. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. | |
| [Hazards] May burn but will not ignite readily. When heated to decomposition, may emit toxic fumes of selenium and sodium oxide. Stable in air. | |
| [UN (DOT)] 2630 | |
| [Personal Protection] Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin. | |
| [Respirators] Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | |
| [Exposure Effects] May cause reproductive and fetal effects. Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath, | |
| [Exposure limit(s)] TLV (as Se): ppm; 0.2 mg/m3 (ACGIH 1991-1992). | |
| [Poison Class] 1 | |
| [Appearance] A white colored crystalline solid. | |
| [Solubility in water] Very soluble | |
| [Melting Point] 710 | |
| [Density] 3.1 g/cm3 (20 C) | |
| [Usage] Removing green color from glass during its mfr, alkaloidal reagent. | |
| [Vapor Density] 5.96 | |
| [Product Name] Sodium selenite | |
| [Synonyms] Disodium selenite | |
| [CAS] "CASEN_10102-18-8.htm">10102-18-8 | |
| [Formula] H10Na2O8Se | |
| [Molecular Weight] 172.93 | |
| [EINECS] 233-267-9 | |
| [RTECS] VS7350000 | |
| [RTECS Class] Tumorigen; Mutagen; Reproductive Effector; Human Data | |
| [Merck] 12,8822 | |
| [Beilstein/Gmelin] 198696 (G) | |
| [EC Index Number] 015-185-00-3 | |
| [Small spills/leaks] Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. | |
| [Incompatibilities] Incompatible with strong acids. | |
| [Stability] Stable under normal temperatures and pressures. | |
| [Decomposition] Toxic fumes of sodium oxide, selenium/selenium oxides. | |
| [Combustion Products] Toxic gases and vapors may be released in a fire involving. | |
| [UN Number] 2630 | |
| [Hazard Class] 6.1 | |
| [Packing Group] I |
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